. --- Is Tom still smoking? --- No. By next Saturday he ______ for a whole month without smoking a single cigarette.
A good idea ______me! Which of the following is Not Right?
A number of tests have been conducted to _________ that these drugs have no side effects.
---Why did Tom become wealthy this year? ---Because he sold _________________ he did last year.
Not until his father came back ____________ to bed.
The doctor said that maybe his disease is __________ the water he drinks.